The word "帆船" is formed by combining the character "帆", meaning sail, which is a phono-semantic character composed of the radical "巾" (cloth) indicating its material category and the phonetic component "凡" suggesting its pronunciation, with the character "船", meaning boat, also a phono-semantic character composed of the radical "舟" (boat) indicating its category and the phonetic component "㕣" suggesting its pronunciation; together they create a compound noun where "帆" modifies "船" to specify a boat propelled by sails.